Do you dream of working on the biggest of trucks and heavy machinery?

Learn how to become a diesel mechanic at one of the top state-of-the-art diesel mechanic schools in the country.

Our hands-on Diesel Technology program teaches how to inspect, maintain and repair different types of diesel engines for a variety of industries.

Is diesel mechanic training right for you?

Diesel Technology (11)You’re a hard worker who doesn’t mind getting hands-on. You’d rather be at work in a shop than at a desk.

You like to figure out how things work – taking them apart and putting them back together so that they run better than ever.

You want your education to prepare you for an in-demand job in a growing industry.

Does this sound like you? Learn how to become a diesel mechanic at one of the most state-of-the-art diesel mechanic schools in the country. The training at Ranken meets key industry standards, including Automotive Service Excellence (ASE) and National Automotive Technician Education Foundations (NATEF).

Interested in seeing more of our Diesel facilities? Take an interactive 360° virtual tour of Ranken Technical College’s DIESEL department.

Why choose Ranken for diesel mechanic training?

Diesel Technology (10)Our Diesel Technology program provides you with hands-on diesel mechanic training at Ranken-West and Ranken-Southeast.

Wondering how to become a diesel mechanic? With a projected steady increase in new diesel technician jobs in the next ten years, the U.S. Department of Labor notes that employers prefer applicants who have completed postsecondary training programs in diesel engine repair.

Ranken’s diesel mechanic training program was created to meet the growing need for heavy-duty service professionals in the transportation industry.

The program is modeled to meet Automotive Service Excellence (ASE) and National Automotive Technicians Education Foundation (NATEF) standards, and it will prepare graduates to be career-ready diesel service technicians.

Douglas J. Waldon

Instructor, Full Time

Dave Morgan

CDL Instructor, Full Time

Tim Chandler

Instructor, Full Time

Robert D. Vilmure

Instructor, Full Time

Shawn D. Ray

Department Chair & Instructor, Full Time

Eric C. DeSplinter

Instructor, Full Time

Taylor P. Clark,

Instructor, Full Time

Diesel technicians today must be prepared to work on a variety of systems, including air brakes, hydraulics, and air conditioning as well as the high-end multiplexed network of computers and electronics.

With Ranken’s focus on hands-on training and modern industry-standard technologies, Diesel Technology students will become proficient in a range of skills and equipment, including:

  • Rebuilding diesel engines
  • Servicing transmission assemblies in heavy-duty trucks
  • Servicing brake systems, including air brakes and anti-lock systems
  • Performing preventative maintenance inspections and services

The program is modeled to meet Automotive Service Excellence (ASE) and National Automotive Technicians Education Foundation (NATEF) standards. Students who complete the program will be able to enter the job market as confident, career-ready diesel service technicians.

The program will prepare students to take the Heavy Duty Truck ASE tests.

Adam Blattel

Department: Alumni Automotive
HVAC Technician @ Scott Air Force Base

2020 HVAC and 2003 Automotive Maintenance Technology
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Scott Griffin

Department: Alumni Automotive
Owner and General Manager @ Griffin Automotive Design & Collision Center

1992 Automotive Collision Repair Technology
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Travis Oliver

Department: Alumni Automotive
Head Painter @ American Automotive, St. Louis

2006 Automotive Collision Repair Technology
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Oliver Gilmore

Department: Alumni Automotive
Collision Repair Technician @ American Automotive

2015 Automotive Collision Repair Technology
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Brian Imboden

Department: Alumni Automotive
Aircraft Painter @ Boeing

2017 Automotive Collision Repair Technology
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Kyle Neely

Department: Alumni Automotive
Technician @ Schaefer Autobody Centers

2007 Automotive Collision Repair Technology
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John Nance

Department: Alumni Automotive
Owner/Operator of All The Details

2005 Automobile Collision Repair Technology
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Tyler Wagner

Department: Alumni Automotive
Automotive Collision Technician @ South County Collision Center

2020 Automotive Collision Repair Technology
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Cameron Anderson

Department: Alumni Automotive
Automotive Maintenance Technician @ Machens Ford Dealership

2020 Automotive Maintenance Technology
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Jacob Bailey

Department: Alumni Automotive
Automotive Service Advisor @ Machens Ford Dealership

2020 Automotive Maintenance Technology
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Gabe Ware

Department: Alumni Automotive
Diesel Mechanic @ Republic Services

2020 Automotive Diesel Technology
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Richard Maor

Department: Alumni Automotive
Automotive Technician @ Morley Performance LLC

May 2020 Automotive High Performance Racing Technology
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Jared Wilmas

Department: Alumni Automotive
Service Technician @ Bommarito Chevrolet

2020 Automotive Maintenance Technology
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Chazzerene ‘Chazz’ Howard

Department: Alumni Automotive
Service Advisor @ Caliber Collision, Hampton, Virginia

2019 Collision Repair Technology
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Blake Forward

Department: Alumni Automotive
Automotive Maintenance Technician @ Machens Ford Dealership

2019 Automotive Maintenance Technology
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Trace Gray

Department: Alumni Automotive
Technician @ Firestone Complete Auto Care

2018 Automotive High Performance Racing Technology
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Jacob Crum

Department: Alumni Automotive
Ford Certified Senior Master Technician @ Machens Ford Dealership

2017 Automotive Maintenance Technology; 2018 BS in Applied Management
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Ross Stromberg

Department: Alumni Automotive
Lead Technician @ Firestone Complete Auto Care

2014 Automotive Maintenance Technology
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Katie Beck Schuler

Department: Alumni Automotive
Lead Refinish Technician @ Car Craft Auto Body

2013 Automotive Collision Repair Technology
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Kyle Neely

Department: Alumni Automotive
Technician @ Schaefer Autobody Centers

2007 Automotive Collision Repair
Read More

Joseph Siekmann

Department: Alumni Automotive


1971 Automotive Mechanical & Automotive Collision
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Peter Kostecki

Department: Alumni Automotive


1971 Automotive Maintenance
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John Calaway

Department: Alumni Automotive


1971 Automotive Technology
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Michael F. Buckley

Department: Alumni Automotive


1971 Automotive Diesel Technology
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Brad Francis

Department: Alumni Automotive
Owner, Certified Performance and Auto Repair, Inc.

2001 Automotive Maintenance Technology
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Ashis Gurung

Department: Alumni Automotive
Auto Body Technician @ Gapsch Carstar Collision Center

May 2020 Automotive Collision Repair Technology
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Andrew Fields

Department: Alumni Automotive
Automotive Technician @ Rob Sight Ford

May 2017 Automotive Maintenance Technology
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